Sample API

Base URL



All requests require the user authentication token in the request header.


To generate an authentication token, please contact ClearTax GST Sales.

You DO NOT have to add client-id and client-secret to the request headers.

API Endpoints

Get Token:


Generate E-Invoice:


Cancel E-Invoice:


Get E-Invoice By IRN:


Get IRN details by Doc. Details


Get GSTIN Details:


Sync GSTIN Details from CP


Generate E-Waybill By IRN:


Cancel E-Waybill:


Get EWB Details By IRN


For API request/response payloads, please refer published by NIC.

Error Codes

In case you have received an error code from NIC, you can check the description of the code here:

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